Improvement in brick-making machines



Umrnn Saar-us PATENT @Prion WILLIAM BLAIR, OF OIL CITY,`IENNS YLVANIA.

||v|PRovE|v|ENT IN BRICK-MAKING'MAGHINES- Specification forming part of Letters Patent No. 197,539, dated November 27, 1877; application filed August 24,0187?.

To all whom fit may concern:

Be it known that I, WILLIAM J. BLAIR, of Oil Oity, in the county of Venango and State of Pennsylvania, have invented a new and useful Improvement in Brick Making Machines, of which the following is a specification:

Figure l is a vertical longitudinall section of my improved brick-making machine. Fig.

2 is a' vertical cross-section of the same, taken through the line :v w, Fig. 1. v

Similar letters of reference indicate corresponding parts.

The object of this invention is to furnish an improved machine for making or molding brick, which shall be so constructed that the bricks can be molded rapidly, and which shallv be simple in construction and convenient in use.

The invention consists in the combination of the pivoted bottom, the cam, the mold, the guide-partitions, the follower, the standard,

' and the lever with the box and the frame, as

the cam D, so that it may be raised and lowered by operating the said cam D.' The Cam D is pivoted to brackets E, attached to the forward legs of the frame A.

F is the mold, which is divided into six compartments, more or less, each of the required size of a brick. The mold F is placed upon the bottom C, and in the box B are secured cross-partitions G, directly over the partitions of the mold F, to form chutes or spouts to guide the clay into the compartments ofthe mold F. v

In the side of the box B, just above the partitions G, is formed a large slot, through which'the prepared clayis introduced from the mill. The clay is pressed down through the spouts G into the mold F by the follower H, i which fits into the upper part of the box B,

the follower H is pressed down, and thus getting above the said follower.

To the middle part of the upper side of the follower His attached the forked lower end of the standardI, in a slot in the upper end of which is pivoted a lever, J. The rear end of .the lever J is pivoted to a bracket or arm, K,

formed upon or attached to the rear end of the box B, and which may be the upward projec tion of the said end. The forward part of the lever J passes through a `guide-slot in the up wardly-projecting forward end L of the box B, or in a standard attached to said lend. The forward end of `the lever L projects into such a position that it may be conveniently reached and operated by the attendant.

M is a U-rod, the arms of which pass along the opposite sides of the box B from its forward end. To the ends of the arms of the U- rod M is attached a wire, N, which passes through' slots in the sides of the box B, at the upper edge of the mold F, so that when the U-rod M is drawn forward the wire N will pass along the top of the mold F, and will separate the clay in the said mold from the clay in the guide-spouts G, so that when the bottom C is lowered the filled mold F may be 

